Electricity: motor control systems inventions 03/09

Recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing format for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 03/26/2009 > patent applications in patent subcategories.
03/19/2009 > patent applications in patent subcategories.
03/12/2009 > patent applications in patent subcategories.
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20090060477 - Food waste disposer with pwm based control of grinding profile: A food waste disposer has a motor driven with pulse width modulation (“PWM”). A grinding profile is controlled based on PWM values of the PWM controller driving the motor. In an aspect, controlling the grinding profile includes varying the speed of the motor based on the PWM values. In an... Agent: Harness, Dickey & Pierce, P.L.C

20090060478 - Motor control device: A motor control device includes a rotation speed control circuits a voltage transforming circuit, a buffering circuit and a driving circuit. The rotation speed control circuit provides a rotation speed control signal. The voltage transforming circuit is electrically connected to the rotation speed control circuit and transforms the rotation speed... Agent: Birch Stewart Kolasch & Birch

20090060479 - Buck converter with improved filter design: A buck converter for use in controlling a motor in accordance with an embodiment of the present invention includes a power input operable for connection to a DC power supply, a switch for selectively connecting the motor to the power supply, a pulse width modulation controller operable to provide a... Agent: Ostrolenk Faber Gerb & Soffen

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